Slate Widget to make overlapping widgets

I wanted to make 2 overlapping widgets in slate.

It is something a bit similar to SBorder but I don’t want the bordersize to get scaled depending upon whats inside.

Another thing I did was place a SBox outside the border and give it a size. It works but it has some unwanted side effects. So I wanted to know if there is a slate widget that allows to place a widget inside another without scaling the outside or anything similar.


SOverlay does the work. But if there is anything else that could also work?